Code register



Oct. 28, 1930.

IL. DEGEN CODE REGISTER Filed May 21. 1929 2 Sheets-Sheet l IN VEN TOR.

www mm 1 w n w II QN z M l any:

A TTORNEYS.

oct. 28,1930. DEGEN 1,779,664

CODE REGISTER Filed May 21. 1929 2 Sheets-$1001 2 fvg. e

A IN V EN TOR. BY ew/'s lege/7 A TTORNEYS.

Patented Oct. 28, 1930 FTNT OFFICE 'LEWIS DEGEN, OF IBURLINGAME, CALIFORNIA CODE REGISTER Application ined may 21,

The present invention relates to a register such as is used in telegraphy for printing code characters. It is especially adaptable to fire alarm telegraphy wherein the signals in code are printed upon a strip of paper. The objects of this invention are to provide a register having any or all of the following features: means to print on a tape the code characters including an inked ribbon and type impression bar; novel means to operate theV impression bar; and novel meansl to advance the inked ribbon.

An embodiment illustrative vof the invention is shown in the accompanying drawings, in which:

F ig. 1 is a side elevation ofa register with the operating parts within the casing shown indotted lines; and Fig. 2 is an end elevation `of the register.

Referring with more particularity to the drawing, a code register'is shown adapted to be connected in the electrical sending circuit over which telegraphic impulses are sent. As is well known in fire alarm telegraphy, impulses are sent intermittently, the periods between impulses determining the code characters. The present invention relates to the printing mechanism, and only that portion of the register pertinent to the present invention is disclosed. The register comprises a casing 5 which houses a spring motor, not shown, except for a drive shaft for advancing the paper tape. This shaft is marked 6 and secured thereto is a toothed drive wheel 7. Mounted upon :the casing' is a reel 8 for receiving a roll 9 of tape, a web being marked 10. The web is guided over an idler 11 along one side of the casing and over ashelf 12 supported by a suitable bracket 13. yMounted uponthe side of the casing is a lever arm la carrying a pressure roller 15 which is urged toward vthe toothed roller 7 by means of a tension spring 16 secured at one end to the lever 14. The other end ofthe tension spring is wrapped around an adjustment drum 17 1929. Serial No. 364,719.

So that by turning the drum, the tension upon the spring may be adjusted. kThe toothed wheel 7 is advanced intermittently by means of clock mechanism and thereby advances the web of paper. Secured to the casing and above the web of paper is a plate 18 having journalled thereon spools 19n and 19h. One spool serves as a take-up spool for an inked ribbon and the other as a feed spool, their functions being alternative so as toreverse the travel of the ribbon when the latter has been unwound from the spool serving as the feed spool. A ribbon 2O is passed downwardly over idlers 21 and 22 so that there is a bightof the ribbon passing parallel to the web. On the shaft 6 is a cam 23. Cam 23 has a high spot which engages a lever 24 pivoted on the casing and providing a cam follower having a post 25 with a roller at the upper end. The roller engages a lever 26 pivoted on plate 18 and having at the end a double pawl 27. The pawl has a slot in which is. disposed a pin 28 mounted ony an arm 29 secured to a shaft 30 so that by swinging ythe arm to one side or the other, the pawl 27 may be disposed to engage either a ratchet wheel on spool 19a or a ratchet wheel on spool 19D. Rotation of the toothed wheel 7 will cause the follower to be lifted and the pawl to be advanced, thereby turning the spool with whose ratchet wheel the pawl is engaged.

Secured to the plate 18 is an anvil 31 having a type member provided on its face opposing the ribbon with a type character such as may be suitable for impression upon the strip of paper. Pivotally mounted upon the casing 5 at 32 is an impression bar 88 having a platen head 34 opposed to the type member and between which and the type member the ribbon and strip of paper passes. Impression arm 33 is fixed to a shaft which is journalled in the casing and secured to the shaft is a tappet arm A tension spring tends to hold the impression bar with the platen against Y stripiofpaper. An armature lever 37 is arm constitute a negative tappet device which when the electromagnets are energized pull the armature downwardly and cause the impression arm to be moved downwardly away .from the paper, the spring 36 returning the impressionV arm so as to strike the paper and cause an impression to be imade by the type member 31. A limit post l1 acts as a stop for the upward movementof the armature lever,-

while an abutment 42 engaging a threaded pin 43 mounted in a post 44 on the casingdetenV S mines the eXtreme upper position of the impression lever. 'lhe latter adjustment pro-V vides 4foruadjusting the magnitude-of the impact of the platen.

VAsithe lelectrical impulses are received, the

;;` clockwork is set in motion to cause the toothed drive wheel Tito rotate advancing lthe paper. The cam 6 causes the pawl to intermittently .rotate the take-up spool and move the inked ribbon. At each impulse, the armature lever ,f 1 37 is drawn toward the electromagnets 39 and through the tappet device lthe Y impression lever isswung to retracted position; `VVhat lclaim is :--V

1f A telegraphic register comprising Va y frame, an electromagnet for energization byl electric impulses,a pivoted armature lever for Y said electromagnet, animpression bar pivotally mounted on said frame and'having an impact head, a negative tappet device disposed between said armature lever and impression bar for operation of the latter by said armature-lever, spring means connected to said impression bar to cause said impression bar to strike a paper tape, means for advancing a paper tape across said impact head, an anvil opposed to said impact head and between which K the paper tape to receive impressions passes, ribbon feed and take-upspools, an inked rib- `bon on said spools passed betweenvsaid anvil and impact head, there being a type character Abetween said anvil and head, and means to ro` tate said spools and advance said ribbon.

2.V A telegraphic register comprising a Y frame, an electromagnet `for energization by electric impulses, a pivoted armature lever for said electromagnet, an impression -bar pivotally mounted on said frame and having an impact head, a shaft fixed to said impression bar and having a tappet arm, a tappet finger on'said armature lever to engage said arm andV cause retraction of said impression bar, means for advancing a paper tape across said iin-V pact head, an VVanvil opposed to' said impact head and between which the paper tape to resaid ribbon. Y Y 1 l y Y Y 4. 'A telegraphic register comprising a` frame, an electromagnet for energization'byV ceive impressionspasses, a spring connected Y to said impression bar to restore said bar and cause said impact head to strike said paper tape, ribbon feed and take-up spools, an inked ribbon on said spools passed between said anvil and impact head, there being a type character between'said anvil and impact head, and means to rotate said spools and advance said ribbon.

3. A telegraphic register comprising a frame, an electromagnet for energization by electric impulses, a pivoted armature lever for said electromagnet, ran impression bar pivotally mounted on said frameand having an impact head, a tappet device disposed betweensaid armaturel lever and impression "bar'for operation` of the latter bysaid armature .lever to cause retraction of said impression bar,rsaid tappet device being disposed to amplifythe motion between said armature lever and said impression bar, means for advancing a paper tape across saidimpact head, an anvil opposedto said impact head and between which the paper tape to receivejim# pressions passes, a spring connected to said impression barto restore said bar and cause saidV impact head tostrike sai-d' paper tape, ribbon feed Vand take-up spools, an inked' ribbon Von saidI spools passed between saidV anvil and impact head, there being a type character'between said anvil and impact head, and means to rotate said electric impulses, a pivoted armature lever for said electromagnet, an impression bar spools and ,advancel pivotally mounted ony said `frame and having an impact head, Ia shaft fixed to said vimpression bar and having a tappet' arm, a tappet ngei on saidk armaturey lever to engage said arm and cause retraction of said impression bar, said tappet arm andtappet finger: being disposed to amplify the motion bet-Ween said armature lever and said type bar, means for advancingv a paper Ytape across said impact llG head, an anvil opposed to vsaid impact headV` Y and between which the papertape to receive impressions passes, a spring connected to said impression Vbar to restore said bar and cause-said impact head to strike said paper tape, ribbon feed and take-up p spools, an

inked ribbon on said spools passed between said anvil and impact head, there being a" electric impulses, a pivoted armature lever for said electromagnet, an impression bar n pivotally mounted on` saidframe and having a platen head, a negative tappet device disposed between said'armatui'e vlever and irnpression baril for operation of the latter byj said armature lever, spring meansconnected to said impression bar to cause said bar to strike a paper tape, means for advancing a paper tape across said platen head, an anvil carrying a type character opposed to said platen head and between which the paper tape to receive impressions passes, ribbon feed and take-up spools, an inked ribbon on said spools passed between said anvil and platen head, and means to rotate said spools and advance said ribbon.

In Witness that I claim the foregoing I have hereunto subscribed my name this 9th day of May, 1929.

LEWIS DEGEN. 

